Diego Maradona gave a wild display at a FIFA World Cup match on Tuesday.

Lionel Messi inspired Argentina's national soccer team to the knockout stages of the 2018 World Cup, but the out-of-control antics of Maradona seemed to overshadow the country's thrilling Group D win over Nigeria.

Before the game had even started, Maradona unfurled a banner — of himself — over his VIP box at the Krestovsky Stadium in Saint Petersburg, Russia.

BBC cameras picked up on further erratic behavior as he danced with a Nigerian soccer fan, celebrated the team's first goal in bizarre fashion, and fell asleep at halftime.

He even pumped his middle fingers into the air when Argentina grabbed a late winner courtesy of Marcos Rojo. Getty photographers captured the moment as his friends attempted to hold him back so he did not fall over a glass barrier.

Getty Images / BBC

Maradona is an Argentine hero for leading the country to the 1986 World Cup title, but his over-the-top celebrations on Tuesday resulted in medical treatment.

"I just want to tell you that I'm fine," Maradona said. "I have not been hospitalized."

Maradona said a doctor advised him to go home at halftime because he was suffering from "strong pain" in his neck. As Argentina had only a precarious lead of 1-0, Maradona said he wanted to stay and show his support to the team as it was playing for "everything."

"How could I leave?" he said. "A kiss to all and thanks for the support … Diego will still be there for a while!"

He attributed the cause of his collapse to a "white wine" binge and is believed to have boarded a private jet to Moscow.